6. [0/2 Points] DETAILS PREVIOUS ANSWERS SCALCET8 15.8.029. MY NOTES PRACTICE ANOTHER Use spherical coordinates. (a) Find the volume of the solid that lies above the cone (p = 1r/3 and below the sphere p = 20cos((p). 97287: 15 X (b) Find the centroid of the solid in part (a). (REE) =( ) 7. [-/1 Points] DETAILS SCALCET8 15.8.041. MY NOTES PRACTICE ANOTHER Evaluate the integral by changing to spherical coordinates. 10 100 - X2 200 - X2 - 12 xy dz dy dx x2 + yz